I2C LCD Adapter Module

Description

I2C LCD Adapter Module

The I2C LCD Adapter Module is an efficient and space-saving solution for interfacing LCD displays with microcontrollers like Arduino, Raspberry Pi, and ESP8266. It reduces the required connection wires from 12 to just 2 (SDA & SCL), making it ideal for projects with multiple sensors, SD cards, or limited I/O pins.

With the built-in PCF8574 I2C chip, this module converts I2C serial data into parallel data for LCDs, ensuring fast and easy communication. The default I2C address is 0x3F, but it can be adjusted using solder jumpers, allowing multiple displays to be used on a single I2C bus.

Key Features & Benefits

• I2C Communication: Saves I/O pins by reducing LCD connections to only 2 wires.

• Compatible with 16×2 & 20×4 LCDs: Works with standard 4-bit mode character displays.

• PCF8574 I2C Chip: Converts I2C data to parallel data for easy LCD control.

• Backlight Control: Enable or disable backlight using the onboard jumper.

• Adjustable Contrast: Fine-tune display clarity using a potentiometer.

• Multiple Display Support: Connect up to 8 LCD modules on a single I2C bus.

• Easy Integration: Compatible with Arduino, ESP8266, ESP32, and Raspberry Pi.

Applications

• Embedded Projects: Display sensor data, time, and messages in Arduino projects.

• Home Automation: Show system status in IoT-based automation systems.

• Industrial Monitoring: Interface with microcontrollers for real-time displays.

• Educational Projects: Ideal for learning I2C communication & LCD interfacing.

• DIY Electronics: Useful for custom electronic circuits and automation.

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